Flow
1 cfs ↓
Trend
Falling
Observed
53d ago
Hatch Status
You can expect to find a few Tricos, Baetis, caddis, PMDs, as well as flying ants and hoppers
Conditions
The Big Wood is running low and clear through late August and early September, so focus on water temperature management, especially on the lower river. Tricos, Baetis, caddis, PMDs, flying ants, and hoppers are all active. As temperatures cool into fall, watch for Red Quills (Hecuba) to emerge alongside terrestrials and larger attractor patterns. Consider Red Quills, Chubby Chernobyl, Rubber Legged Stones, and streamers as conditions shift.
Gauges
Live cameras
Big Wood River at Hailey Total Flow
USGS 13139510 · Oct 18, 2026, 5:00 PM
Every 60 min · daylight
Techniques
- Small nymphs trailed behind a dry are productive, and streamers are also worth a try
Recommended flies
PMDsCaddisRed QuillsChubby ChernobylRubber Legged StonesKing PrinceStreamers
Safety
Low water and clear conditions demand careful temperature management on the lower river.